Thoracic cavity supporting and artery clamping device for pig cardiovascular surgery

Abstract

The embodiment of the invention provides a thoracic cavity supporting and artery clamping device for a pig cardiovascular surgery, and relates to the field of animal medical equipment. The base is of a hollow structure with one side open; the first lead screw is mounted in the base; the number of the moving arms is two, one moving arm is fixedly installed in the base, and one end of the first lead screw is rotatably installed on the moving arm; the other moving arm is in threaded connection with the first lead screw, and the first lead screw is controlled to rotate so that the moving arm in threaded connection with the first lead screw can move. And the sliding rod is mounted in the base. The device comprises a thoracic cavity supporting device and an artery clamping device, the length of the supporting arms can be adjusted according to the thickness of breast muscles and fat of pigs, flexibility and stability are improved, and rib separation width is adjusted as required; ribs can be protected, and scratches can be avoided. In addition, the artery can be clamped, the clamping force is stable, and the equipment stability is high.

Description

Technical Field

[0001] The invention relates to the field of animal medical equipment, in particular to a chest support and artery clamping device for pig cardiovascular surgery. Background Art

[0002] In pig cardiovascular surgery, good exposure of the chest cavity is one of the key factors for the success of the operation. The pig's chest structure has certain similarities with that of humans, and contains important organs such as the heart and large blood vessels. When performing complex cardiovascular surgeries such as heart bypass and heart valve repair, a clear view of the surgical field is required.

[0003] The rib retractor is the most common device used in open-chest surgery. It is usually composed of an adjustable metal arm and a fixed clamp, which can adjust the degree of rib opening according to surgical needs. During open-chest surgery, the ribs in the chest are cut open along the middle, and the rib retractor is used to separate the ribs on the left and right sides, thereby partially exposing the heart organ in the chest cavity.

[0004] Most of the rib retractors currently used for chest support are universal, with only model differences, and no distinction is made between use on humans or animals. Since the fat and muscle layers of pigs are slightly thicker than those of humans, the support arms of universal rib retractors are sometimes unable to cope with the chest support work of pigs that are large in size and have thick fat layers. In addition, traditional rib retractors are made of metal, have high hardness, and have rigid contact with the ribs. Even if the ribs themselves have a certain degree of elasticity, there is still a risk of scratching the ribs due to the hard surface of the rib retractor.

[0005] Based on this, the present invention is proposed. Summary of the invention

[0006] According to an embodiment of the present invention, a thoracic support and artery clamping device for cardiovascular surgery of pigs is provided, which is used to solve the problem that the existing general rib retractor support arm is sometimes unable to cope with the thoracic support work of pigs with large body and thick fat layer and has the risk of scratching ribs.

[0007] The first part of the present invention provides a chest support device for pig cardiovascular surgery

[0008] The thoracic support device for pig cardiovascular surgery comprises: a base, which is a hollow structure with one side open;

[0009] a first lead screw, the first lead screw being mounted in the base;

[0010] There are two movable arms, one of which is fixedly mounted in the base, and one end of the first lead screw is rotatably mounted on the movable arm; the other movable arm is threadedly connected to the first lead screw, and the first lead screw is controlled to rotate to move the movable arm threadedly connected thereto;

[0011] A slide rod, the slide rod is installed in the base, and a moving arm threadedly connected to the first lead screw is slidably connected to the slide rod;

[0012] A supporting arm, wherein there are two supporting arms, each of which is mounted on one side of the two movable arms away from each other;

[0013] A hollow sac, the hollow sac being mounted on a side of the support arm away from the moving arm;

[0014] A power mechanism is installed on the base, the power mechanism is connected to the hollow sac, and the power mechanism is used to expand the hollow sac.

[0015] Preferably, the power mechanism comprises:

[0016] An oil barrel, the oil barrel is mounted on the base, and the oil barrel is a cylindrical hollow cavity;

[0017] A first piston, which is slidably mounted in the oil barrel and is in contact with an inner wall of the oil barrel;

[0018] a second screw, one end of which is fixedly connected to the first piston, and the other end of which extends out of the outer wall of the oil barrel;

[0019] A rotating seat is rotatably mounted on the oil barrel and is threadably connected to the second lead screw.

[0020] Preferably, the power mechanism further comprises:

[0021] A slider, the slider is mounted on one end of the second lead screw extending out of the oil barrel;

[0022] A slideway, wherein the slideway is mounted on the base, and the slider is slidably mounted in the slideway;

[0023] An exhaust valve is installed on the oil barrel.

[0024] Preferably, the movable arm and the supporting arm are connected via an adjustment mechanism, and the adjustment mechanism comprises:

[0025] A mounting plate, the mounting plate being mounted on a side of the movable arm opposite to the supporting arm;

[0026] A third lead screw, the third lead screw is rotatably mounted on a side of the support arm opposite to the moving arm, and the mounting plate is threadedly connected to the third lead screw;

[0027] A guide rod is installed on a side of the support arm opposite to the moving arm, and the mounting plate is slidably connected to the guide rod.

[0028] Preferably, it further comprises a driving mechanism, wherein the driving mechanism is capable of rotating the first lead screw, and the driving mechanism comprises:

[0029] A first bevel gear, which is rotatably mounted in the base and connected to the other end of the first lead screw;

[0030] A second bevel gear, the second bevel gear is installed in the base and meshed with the first bevel gear;

[0031] A rotating knob, the rotating knob is mounted on the base and connected to the second bevel gear;

[0032] A wrench, the wrench being mounted on the rotating knob;

[0033] A socket is provided on the wrench, and the rotary knob is inserted into the socket.

[0034] Preferably, it further comprises a diverter mechanism, wherein the diverter mechanism is mounted on the base, and the hollow capsule is connected to the power mechanism via the diverter mechanism.

[0035] Preferably, the diversion mechanism comprises:

[0036] A protective shell, wherein the protective shell is mounted on the base;

[0037] A connecting box, the connecting box is mounted on the protective shell, and the oil barrel is connected to the connecting box through a pipeline;

[0038] Oil pipes, there are several of the oil pipes, which are installed in the protective shell at equal distances, and one end of the oil pipe extends into the connecting box;

[0039] Connectors, there are several connectors, which are respectively installed on the protective shells, several connectors are respectively connected to the other ends of several oil pipes, and the connectors are connected to the hollow capsules through pipelines;

[0040] A plug, the plug being mounted on the connector;

[0041] A top block, wherein the top blocks are in a plurality and are installed in the protective shell, and the plurality of top blocks correspond to the positions of the plurality of oil pipes respectively;

[0042] a first spring, the first spring being installed between the bottom end of the top block and the protective shell;

[0043] a cross bar, the cross bar being mounted on the top block;

[0044] Through holes, wherein there are two through holes, which are symmetrically arranged on the left and right sides of the protective shell;

[0045] A driving rod, the driving rod passes through the protective shell through two through holes, and the driving rod is in contact with the cross bar;

[0046] A groove, wherein the groove is formed on the driving rod;

[0047] Lifting parts, there are three lifting parts, which are respectively installed in the protective shell;

[0048] The lifting portion comprises:

[0049] A fixing frame, the fixing frame being installed in the protective shell;

[0050] A push-up block, the push-up block is rotatably mounted on the mounting frame;

[0051] A first stopper and a second stopper, wherein the first stopper and the second stopper are installed in the protective shell, and the first stopper and the second stopper are respectively located at two sides of the fixing frame;

[0052] a second spring, the second spring being installed between the push-up block and the protective shell;

[0053] A connecting rod, wherein the connecting rod is rotatably connected to the push-up blocks in the three lifting parts respectively;

[0054] Blind grooves, there are three blind grooves, which are respectively opened on the lower surface of the driving rod;

[0055] There are two shifting rods, which are respectively installed on the driving rods.

[0056] Preferably, the three lifting portions are spaced at different intervals;

[0057] The interval between the three blind grooves is the same as the interval between the three lifting portions.

[0058] Preferably, a bracket is installed on the lower surface of the base.

[0059] In a second aspect of the present invention, there is provided an artery clamping device for porcine cardiovascular surgery, comprising:

[0060] Preferably, a housing;

[0061] A hydraulic chamber, the hydraulic chamber is installed in the housing, and the hydraulic chamber is connected to the connector through a pipeline;

[0062] a drive chamber, the drive chamber being mounted in the housing;

[0063] a second piston slidably mounted in the hydraulic chamber;

[0064] a connecting rod, one end of which is connected to the second piston, and the other end of which extends into the driving chamber;

[0065] A push plate, the push plate being mounted on one end of the connecting rod extending into the driving cavity;

[0066] A fixing rod, the fixing rod being installed in the driving cavity;

[0067] A fixing clip, wherein two fixing clips are respectively symmetrically mounted on the fixing rod, and one end of the fixing clip away from the fixing rod extends out of the outer wall of the housing;

[0068] There are two push arms, which are symmetrically mounted on the push plate;

[0069] Limiting grooves, there are two limiting grooves, which are symmetrically installed in the driving cavity, and the two pushing arms are slidably installed in the two limiting grooves respectively;

[0070] A leaf spring is installed between the two fixing clips.

[0071] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0072] 1. The present invention provides a thoracic support device for cardiovascular surgery in pigs. By rotating the third screw, the support arm can be moved axially along the third screw, thereby adjusting the length of the support arm used to support the rib part. The length can be adjusted according to the thickness of the pig's chest muscles and fat, thereby improving the flexibility and stability of the equipment.

[0073] 2. In the present invention, by rotating the first screw, one of the movable arms can be moved away from the other movable arm, thereby adjusting the separation width of the supported ribs. The opening and closing width of the ribs can be adjusted as needed, with high flexibility to meet the needs of different situations.

[0074] 3. In the present invention, the second screw and the first piston are moved by rotating the rotating seat, and the hydraulic oil in the oil barrel is introduced into the hollow bag to expand the hollow bag. The flexible property of the hollow bag is utilized to protect the supported ribs, ensuring that the support arm has a certain buffering capacity when supporting the ribs, and avoiding scratches on the ribs due to rigid contact.

[0075] 4. The present invention provides an artery clamping device for pig cardiovascular surgery, which moves the second piston by introducing hydraulic oil into the hydraulic chamber, thereby utilizing two pushing arms to drive the two fixed clamps closer to each other to achieve an artery clamping effect. When the delivery of the hydraulic oil is stopped, the two fixed clamps can stably clamp with force to avoid the negative impact caused by unstable force.

[0076] 5. The present invention can control the delivery of hydraulic oil to the hollow sac or the hydraulic cavity through the shunt mechanism, ensuring that only one channel is open at the same time, ensuring stable operation, and at the same time utilizing the setting of the mechanical structure to stably and accurately control the opening and closing of the channel, the operation is convenient and quick, ensuring that the hollow sac will not shrink after expansion, and at the same time ensuring that the clamping force will not change after the fixed clamp clamps the artery, ensuring the stability of the equipment.

[0077] In summary, the present invention includes a chest support device and an artery clamping device; the length of the support arm can be adjusted according to the thickness of the pig chest muscle and fat to improve flexibility and stability, and the rib separation width can be adjusted as needed; it can also protect the ribs and avoid scratches. In addition, it can clamp the artery and ensure the stability of the clamping force, ensuring the high stability of the device.

[0078] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] The above and other features, advantages and aspects of the embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0080] Figure 1 A schematic structural diagram of a thoracic support device for pig cardiovascular surgery according to an embodiment of the present invention is shown;

[0081] Figure 2 A schematic diagram of the exploded structure of a chest support device for pig cardiovascular surgery according to an embodiment of the present invention is shown;

[0082] Figure 3 It shows a schematic structural diagram of a chest support device and an artery clamping device for pig cardiovascular surgery according to an embodiment of the present invention;

[0083] Figure 4 A cross-sectional schematic diagram of an artery clamping device for pig cardiovascular surgery according to an embodiment of the present invention is shown;

[0084] Figure 5 It shows a schematic diagram of the exploded structure of the power mechanism of the chest support device for pig cardiovascular surgery according to an embodiment of the present invention;

[0085] Figure 6 It shows an exploded structural schematic diagram of an adjustment mechanism of a chest support device for pig cardiovascular surgery according to an embodiment of the present invention;

[0086] Figure 7 A schematic diagram showing a shunt mechanism of a chest support device for pig cardiovascular surgery according to an embodiment of the present invention is shown;

[0087] Figure 8 It shows a front cross-sectional view of a shunt mechanism of a chest support device for pig cardiovascular surgery according to an embodiment of the present invention;

[0088] Fig. 9 It shows a front view of the top block and the second spring of the chest support device for pig cardiovascular surgery according to an embodiment of the present invention in a matching state;

[0089] Fig.10 A schematic diagram showing the rotation state of the top block of the chest support device for pig cardiovascular surgery according to an embodiment of the present invention is shown;

[0090] Fig.11 A schematic diagram showing a top block reset state of a chest support device for pig cardiovascular surgery according to an embodiment of the present invention is shown;

[0091] Fig.12 A schematic structural diagram of a bracket of a thoracic support device for pig cardiovascular surgery according to an embodiment of the present invention is shown;

[0092] Fig.13 A bottom view of a wrench of a chest support device for porcine cardiovascular surgery according to an embodiment of the present invention is shown.

[0093] The reference numerals are as follows:

[0094] 1. base, 2. first lead screw, 201. slide bar, 3. moving arm, 4. support arm, 5. hollow capsule, 6. power mechanism, 61. oil barrel, 62. first piston, 63. second lead screw, 64. slide block, 65. rotating seat, 66. slideway, 67. exhaust valve, 7. diversion mechanism, 71. protective shell, 72. connecting box, 73. oil pipe, 74. connector, 75. plug, 76. top block, 77. first spring, 78. cross bar, 79. drive rod, 710. groove, 711. lifting block, 711a, fixed frame, 712. first block, 713. second block, 714. second Spring, 715, connecting rod, 716, blind groove, 717, lever, 718, limit fast, 8, adjustment mechanism, 81, mounting plate, 82, third lead screw, 83, guide rod, 9, driving mechanism, 91, first bevel gear, 92, second bevel gear, 93, rotating knob, 94, wrench, 95, jack, 10, bracket, 11, artery clamping device, 111, housing, 112, hydraulic chamber, 113, driving chamber, 114, second piston, 115, connecting rod, 116, push plate, 117, push arm, 118, limit groove, 119, fixing rod, 1110, fixing clamp, 1111, leaf spring. DETAILED DESCRIPTION

[0095] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0096] In addition, the term "and / or" in this article is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0097] Embodiment 1:

[0098] like Figure 1 , Figure 2 and Fig.12As shown, the chest support device for pig cardiovascular surgery includes: a base 1, a first screw 2, a slide bar 201, a movable arm 3, a support arm 4 and a bracket 10. The base 1 is a hollow structure with one side open, and the bracket 10 is installed on the lower surface of the base 1. The bracket 10 is used to support the base 1. When in use, the bracket 10 can be used to place the device stably, while avoiding the base 1 from being placed directly on the pig's body to avoid compressing the pig's chest and affecting its breathing. The first screw 2 is installed in the base 1. There are two movable arms 3, one of which is fixedly installed in the base 1, one end of the first screw 2 is rotatably installed on the movable arm 3, and the other movable arm 3 is threadedly connected to the first screw 2. The first screw 2 is controlled by the driving mechanism 9 and rotates to enable the movable arm 3 threadedly connected thereto to move along the first screw 2. In order to ensure the stability of the moving arm 3, the sliding rod 201 can be used to prevent the moving arm 3 from rotating. The sliding rod 201 is installed in the base 1, and the moving arm 3 threadedly connected to the first lead screw 2 is slidably connected to the sliding rod 201. The cooperation of the sliding rod 201 can make the moving arm 3 slide stably. The driving mechanism 9 includes: a first bevel gear 91, a second bevel gear 92, a rotating knob 93, a wrench 94 and a socket 95. The first bevel gear 91 is rotatably installed in the base 1, and the first bevel gear 91 is connected to the other end of the first lead screw 2. The rotation of the first bevel gear 91 can make the first lead screw 2 rotate together. The second bevel gear 92 is installed in the base 1 and meshed with the first bevel gear 91. The rotating surfaces of the second bevel gear 92 and the first bevel gear 91 are perpendicular to each other, thereby realizing vertical power transmission, thereby ensuring that the rotation of the second bevel gear 92 can drive the first bevel gear 91 to rotate. The rotating knob 93 is installed on the base 1, and the rotating knob 93 is connected to the second bevel gear 92. The rotating knob 93 is prism-shaped. The rotary knob can be rotated by a wrench 94, which is mounted on the rotary knob 93. A socket 95 is provided on the wrench 94. Fig.13 The rotating knob 93 is inserted into the socket 95. The shape of the socket 95 matches the shape of the rotating knob 93. By turning the wrench, the rotating knob can be rotated. There are two supporting arms 4, which are respectively installed on the sides of the two moving arms 3 away from each other. The supporting arms 4 are made of 304 stainless steel. The sides of the two supporting arms 4 away from each other are used to support the pork ribs.

[0099] When the above structure is used, a special surgical instrument is first used to perform a thoracotomy on the pig, and the middle part of the pig's sternum is cut to separate the ribs on the left and right sides. Then, the two support arms 4 are placed in the middle seam of the ribs, and the rotating knob 93 is rotated by a wrench 94 to rotate the second bevel gear 92, thereby causing the first bevel gear 91 to drive the first lead screw 2 to rotate, so that the movable arm 3 threadedly connected thereto is separated from the other movable arm 3, so that the ribs on both sides of the pig are separated by the two support arms 4. Then, the bracket 10 is placed on the operating table or the ground, ensuring that the base 1 and the bracket 10 span the pig's body to prevent the base 1 from directly pressing on the pig's body.

[0100] This structure can control the distance between the pig's ribs by moving the two movable arms 3. The device is highly flexible. At the same time, by utilizing the function of the bracket 10, the device can be placed on the pig to prevent the pig from having difficulty breathing due to oppression.

[0101] In addition, due to the difference in thickness of the fat layer and muscle layer of pigs, the pigs have the ability to cope with the difference, so the reference Figure 2 and Figure 6 As shown, the following scheme is proposed: the movable arm 3 and the support arm 4 are connected by an adjustment mechanism 8, and the adjustment mechanism 8 includes: a mounting plate 81, a third lead screw 82 and a guide rod 83. The mounting plate 81 is mounted on the side of the movable arm 3 opposite to the support arm 4, and the third lead screw 82 is rotatably mounted on the side of the support arm 4 opposite to the movable arm 3, and the mounting plate 81 is threadedly connected to the third lead screw 82, and the top end of the third lead screw 82 extends out of the top end of the support arm 4, and the extended part is in a prism shape, which is convenient for rotation. The guide rod 83 is mounted on the side of the support arm 4 opposite to the movable arm 3, and the mounting plate 81 is slidably connected to the guide rod 83, and the rotation of the third lead screw 82 can make the support arm 4 move downward relative to the mounting plate 81, and the part of the support arm 4 located below the movable arm 3 is adjusted to support the pig ribs. With this structure, the length of the supporting part of the support arm 4 can be adjusted, thereby improving the versatility of the equipment.

[0102] In actual use, since the support arm 4 is made of hard 304 stainless steel, its surface is hard and lacks buffering capacity. In the process of supporting the ribs or when the device moves, it is easy to scratch the ribs. To solve this problem, the following solution is proposed, refer to Figure 1 , Figure 2 and Figure 5 As shown, the chest support device also includes: a hollow capsule 5 and a power mechanism 6. The hollow capsule 5 is installed on the side of the support arm 4 away from the moving arm 3. The hollow capsule 5 is a hollow cavity, and its outer layer is made of rubber material. The inner wall is provided with polyvinyl chloride with oil-isolating ability. The normal hollow capsule 5 is in a contracted state. When the fluid is passed into its inner cavity, the hollow capsule 5 can be propped up to an expanded state. Its maximum expansion thickness is 0.5 cm. When it is fully expanded, the flexible characteristics of its rubber outer layer and the internal fluid are used to make the support arm 4 have a certain buffering capacity. When the device is stable as a whole and the fluid stops being transported, the support arm 4 stably supports the ribs, and the hollow capsule 5 is used to protect the ribs to avoid scratches. The power mechanism 6 is installed on the base 1, and the power mechanism 6 is connected to the hollow capsule 5. The power mechanism 6 is used to expand the hollow capsule 5. The power mechanism 6 can be used to transport hydraulic oil into the hollow capsule 5. As a fluid that enables the hollow capsule 5 to expand, the hydraulic oil has incompressibility, and the total volume of the hollow capsule 5 can be guaranteed to remain unchanged after the transportation is stopped.

[0103] refer to Figure 5The power mechanism 6 includes: an oil barrel 61, a first piston 62, a second lead screw 63, a slider 64, a rotating seat 65, a slideway 66 and an exhaust valve 67. The oil barrel 61 is mounted on the base 1. The oil barrel 61 is a cylindrical hollow cavity. The exhaust valve 67 is mounted on the oil barrel 61. The exhaust valve 67 consists of an air port connected to the inner cavity of the oil barrel 61 and a nut screwed on the air port. The nut is rotated to separate it from the air port, and oil can be added to the oil barrel 61, or the gas therein can be exhausted. The air port can be closed by resetting the nut. The oil barrel 61 is connected to the hollow capsule 5 through a pipeline, the first piston 62 is slidably installed in the oil barrel 61, and the first piston 62 is in contact with the inner wall of the oil barrel 61. The space on the left side of the first piston 62 is filled with hydraulic oil. When the first piston 62 moves to the left, it can squeeze the hydraulic oil, so that the hydraulic oil is transferred to the hollow capsule 5 through the pipeline to expand the hollow capsule 5. In addition, when there is air in the oil barrel 61, the movable first piston 62 is exhausted through the exhaust valve 67. One end of the second lead screw 63 is fixedly connected to the first piston 62, and the other end of the second lead screw 63 extends out of the outer wall of the oil barrel 61. The rotating seat 65 is rotatably installed on the oil barrel 61, and the rotating seat 65 is threadedly connected to the second lead screw 63. The rotation of the rotating seat 65 can make the second lead screw 63 move along its own axial direction, thereby driving the first piston 62 to move synchronously. The slider 64 is installed at one end of the second screw 63 extending out of the oil barrel 61, and the slide 66 is installed on the base 1. The slider 64 is slidably installed in the slide 66. The slide 66 limits the slider 64 to prevent the second screw 63 from rotating, thereby ensuring the stable movement of the second screw 63.

[0104] The above device can realize the movement of the first piston 62 in the oil barrel 61 through the cooperation of the rotating seat 65 and the second screw 63, thereby realizing stable hydraulic oil transfer and stable expansion of the hollow capsule 5. Stopping the rotating seat 65 can stop the delivery of hydraulic oil to ensure that the hollow capsule 5 remains in an expanded state. Flipping the rotating seat 64 to make the piston 62 move in the opposite direction can suck the hydraulic oil out of the hollow capsule 5. The cooperation of the slideway 66 and the slider 64 can ensure the stability of the second screw 63; the setting of the exhaust valve 67 can facilitate exhaust and oil injection.

[0105] The chest support device for pig cardiovascular surgery also includes a diverter mechanism 7, which is installed on the base 1. The hollow sac 5 is connected to the power mechanism 6 through the diverter mechanism 7. The diverter mechanism 7 has multiple hydraulic oil channels. The diverter mechanism 7 can be used to control the outflow channel of the hydraulic oil, and quickly select the hydraulic oil to flow to the hollow sac 5 or to transport the hydraulic oil to the remaining structures.

[0106] refer to Figure 1 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11As shown, the diversion mechanism 7 includes: a protective shell 71, a through hole 7101, a connecting box 72, an oil pipe 73, a connector 74, a plug 75, a top block 76, a first spring 77, a cross bar 78, a driving rod 79, a groove 710, a push-up block 711, a fixing frame 711a, a first stopper 712, a second stopper 713, a second spring 714, a linkage rod 715, a blind groove 716, a lever 717 and a limiting block 718. The protective shell 71 is mounted on the base 1, and the connecting box 72 is mounted on the protective shell 71. The connecting box 72 is a hollow cavity. The oil barrel 61 is connected to the connecting box 72 through a pipeline, and the hydraulic oil in the oil barrel 61 can flow into the connecting box 72 through the pipeline. There are several oil pipes 73, which are installed in the protective shell 71 at equal distances. One end of the oil pipe 73 extends into the connecting box 72. The hydraulic oil in the connecting box 72 can enter the oil pipe 73. The oil pipe 73 is a hydraulic oil flow channel, which is made of flexible rubber material. When squeezed, it will deform and cause the passage to be closed. There are several connectors 74, which are installed on the protective shell 71. Several connectors 74 are connected to the other ends of several oil pipes 73 respectively. The connector 74 is connected to the hollow capsule 5 through a pipeline, and the hydraulic oil can smoothly enter the hollow capsule 5 to expand it. The plug 75 is installed on the connector 74 by threaded connection. When one of the connectors 74 needs to be used, the plug 75 is rotated to remove it, and then one end of the pipeline is sleeved on the connector 74. In this embodiment, the inner diameter of the pipeline connected to the connector 74 is adapted to the connector 74, ensuring that the pipeline tightly embraces the connector 74 and will not be separated, and ensuring the sealing. In addition, the connection can be assisted by tools such as pipe clamps. There are several top blocks 76 installed in the protective shell 71. Several top blocks 76 correspond to the positions of several oil pipes 73 respectively. Limiting blocks 718 are installed on both sides of the top block 76 to limit the top block 76 and ensure that the top block 76 can only move in the up and down directions. When the top block 76 moves upward to press the oil pipe 73, the oil pipe 73 can be deformed, thereby closing the passage. The first spring 77 is installed between the bottom end of the top block 76 and the protective shell 71. When the top block 76 is forced to move upward, the first spring 77 will be stretched. After the external force is removed, the top block 76 can be reset by the tension of the first spring 77. The cross bar 78 is installed on the top block 76. There are two through holes 7101, which are symmetrically opened on the left and right sides of the protective shell 71. The driving rod 79 passes through the protective shell 71 through the two through holes 7101, and the driving rod 79 contacts the cross bar 78. At this time, each top block 76 is tightly fitted with each oil pipe 73, so that the passage of each oil pipe 73 is closed. The groove 710 is formed on the driving rod 79. When the groove 710 corresponds to one of the cross bars 78, the top block 76 at this position moves downward under the pulling force of the first spring 77, thereby opening the passage of the oil pipe 73 at this position.

[0107] In addition, in the embodiment, when the driving rod 79 is lowered, all the top blocks 76 can be lowered, thereby opening all the oil pipes 73 to facilitate the recovery of hydraulic oil by the power mechanism 6. The driving rod 79 is raised and lowered by the control of the lifting part. There are three lifting parts, which are respectively installed in the protective shell 71. The lifting part includes: a pushing block 711, a fixing frame 711a, a first stop block 712, a second stop block 713 and a second spring 714. The fixing frame 711a is installed in the protective shell 71. The pushing block 711 is rotatably installed on the mounting frame 711a. The pushing block 711 is arranged in a diamond shape. The first stop block 712 and the second stop block 713 are installed in the protective shell 71, and the first stop block 712 and the second stop block 713 are respectively located on both sides of the fixing frame 711a. The first stop block 712 and the second stop block 713 can limit the rotation range of the pushing block 711. The second spring 714 is installed between the pushing block 711 and the protective shell 71. The connection between the second spring 714 and the pushing block 711 is located above the rotation center of the pushing block 711. The connection between the second spring 714 and the protective shell 71 is collinear with the rotation center of the pushing block 711. The linkage rod 715 is rotatably connected to the push blocks 711 in the three lifting parts respectively, ensuring that the rotation of one of the push blocks 711 can synchronously drive the other push blocks 711 to rotate synchronously. There are three blind grooves 716, which are respectively opened on the lower surface of the driving rod 79. The blind grooves 716 provide space for the rotation of the push blocks 711 to avoid interference. There are two shift rods 717, which are respectively installed on the driving rod 79. It is worth noting that the spacing between the three lifting parts in this embodiment is different, and the spacing between the three blind grooves 716 is the same as the spacing between the three lifting parts. Before all the oil pipes 73 are opened, at any time, at least two of the three lifting parts do not correspond to the blind grooves 716, ensuring that the driving rod 79 is always in a high position under the action of the lifting parts, ensuring uniform force.

[0108] When the above structure is in use, remove the plug 75 on the connector 74 corresponding to the oil pipe 73 to be used, and connect the pipe to the connector 74. Then, pull the drive rod 79 to make it slide in the protective shell 71, and stop when the groove 710 corresponds to the position of the first oil pipe 73 that needs to input hydraulic oil. At this time, the top block 76 is lowered under the pulling force of the first spring 77, and the cross bar 78 at this position enters the groove, and the passage of the oil pipe 73 is opened. The hydraulic oil can be delivered through the power mechanism 6, and then the drive rod 79 is pulled to move it. After the cross bar 78 slides out of the groove 710 and contacts the upper surface of the drive rod 79, the top block 76 is reset to close the passage of the oil pipe 73, and the hydraulic oil delivery is ended. Continue to pull the drive rod 76 to make the groove 710 and another cross bar 78 slide into it, and another passage of the oil pipe 73 can be opened. When all the hydraulic oil needs to be recovered, Figure 8The driving rod 79 is pulled to move to the leftmost end. At this time, the lever 717 at the right end is used to push the lifting block 711 to rotate counterclockwise. At this time, the three lifting blocks 711 rotate counterclockwise synchronously, and the second spring 714 is stretched at the same time. After the highest point of the lifting block 711 passes the rotation center, it continues to rotate by the pulling force of the spring 714 and is converted to a low position state. Fig. 9 and Fig.10 As shown, at this time, the second stopper 713 stops the rotation, and at the same time, the highest point of the push-up block 711 is still above its rotation center, but lower than the highest point of the initial position. At this time, the position of the driving rod 79 drops, and each cross bar 78 and the top block 76 drops, so that all the passages of the oil pipes 73 are fully opened. When it is necessary to close the passage of the oil pipe 73 again, the driving rod 79 is pulled back to the initial position. When the lever 717 on the left side contacts the push-up block 711 on the left side, the push-up block 711 on the left side can be rotated clockwise, and the linkage rod 715 is used to make each push-up block 711 rotate synchronously. When the highest end of the push-up block 711 passes its rotation center, the pulling force of the second spring 714 is used to automatically return the push-up block 711 to the initial state. At this time, the push-up block 711 is in a high position state, and the limit brake of the first stopper 712 is used, and the driving rod 79 is synchronously lifted, and the passages of each oil pipe 73 are closed.

[0109] The device can quickly select the flow path of the hydraulic oil through the setting of the driving rod 79 and the groove 710, thereby selecting the component that needs to be input with hydraulic oil; the position of the driving rod 79 can be controlled by the setting of the pushing block 711, and the driving rod 79 can be located in a high position or a low position by rotating the pushing block 711, thereby selecting between conveying hydraulic oil through a single channel or opening all channels to recover hydraulic oil; through mechanical mechanism control, it is more precise and has a longer service life.

[0110] Embodiment 2:

[0111] In addition to the chest support device for pig cardiovascular surgery provided in Example 1, this embodiment also provides an artery clamping device 11, which is used for pig cardiovascular surgery. Figure 3 and Figure 4 The artery clamping device 11 for pig cardiovascular surgery includes: a shell 111, a hydraulic chamber 112, a driving chamber 113, a second piston 114, a connecting rod 115, a push plate 116, a push arm 117, a limiting groove 118, a fixing rod 119, a fixing clamp 1110 and a leaf spring 1111.

[0112] The hydraulic chamber 112 is installed in the housing 111. The hydraulic chamber 112 is connected to the connector 74 through a pipeline, and hydraulic oil can enter the hydraulic chamber 112. The driving chamber 113 is installed in the housing 111. The second piston 114 is slidably installed in the hydraulic chamber 112. The hydraulic oil enters the hydraulic chamber 112 and can push the second piston 114 to move. One end of the connecting rod 115 is connected to the second piston 114, and the other end of the connecting rod 115 extends into the driving chamber 113. The second piston 114 can move together with the connecting rod 115. The push plate 116 is installed at one end of the connecting rod 115 extending into the driving chamber 113, and the push plate 116 can move together with the connecting rod 115. The fixing rod 119 is installed in the driving chamber 113. There are two fixing clips 1110, which are symmetrically installed on the fixing rod 119. The fixing clips 1110 are made of 304 stainless steel, have good corrosion resistance and high strength, and can meet the needs of long-term use and stable clamping of arterial blood vessels in the environment of pig cardiovascular surgery. The end of the fixing clip 1110 away from the fixing rod 119 extends out of the outer wall of the shell 111, and the free ends of the two fixing clips 1110 are close to each other and can be used to clamp arterial blood vessels. There are two pushing arms 117, which are symmetrically installed on the push plate 116. When the push plate 116 moves toward the fixing rod 119, the two pushing arms 117 can push the fixing clips 1110, so that the two fixing clips 1110 rotate with the fixing rod 119 as the rotation center, so that the free ends of the two fixing clips 1110 are close to each other. There are two limit grooves 118, which are symmetrically installed in the driving chamber 113, and the two push arms 117 are slidably installed in the two limit grooves 118 respectively. The limit grooves 118 limit the push arm 117 to ensure the overall stable movement of the push arm 117, the push plate 116, the connecting rod 115 and the second piston 114 to avoid self-rotation. The leaf spring 1111 is installed between the two fixing clamps 1110. The leaf spring 1111 is a common device in the field and is an elastic element with good elastic deformation ability. When the two fixing clamps 1110 are forced to approach each other, the leaf spring 1111 can be deformed. When the external force is removed, the elastic force of the leaf spring 1111 is used to reset the two fixing clamps 1110.

[0113] When the above-mentioned device is in use, hydraulic oil is injected into the hydraulic chamber 112, so that the second piston 114 is forced to move, thereby causing the connecting rod 115 and the push plate 116 to drive the pushing arm 117 to move toward the fixed rod 119, so that the two pushing arms 117 are used to push the fixing clamps 1110 to rotate, and the free ends of the two fixing clamps 1110 can be used to clamp the arterial blood vessels, and then the hydraulic oil input is stopped to ensure that the holding force of the fixing clamps 1110 is stable.

[0114] The device uses hydraulic drive to enable the pushing arm 117 to stably push the fixing clamp 1110 to rotate, thereby clamping the blood vessel. The diversion mechanism 7 can quickly cut off the hydraulic oil injected into the hydraulic chamber 112, thereby ensuring that the position of the second piston 114 remains unchanged, thereby ensuring that the holding force is constant, avoiding the traditional manual clamping method that causes the holding force to be insufficiently constant, and freeing the surgeon's hands to avoid continuous force causing unstable hands; the setting of the limit groove 118 can ensure the stability of the pushing arm 117, further improving the stability of the equipment.

[0115] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A thoracic support device for pig cardiovascular surgery, characterized in that: include: A base (1), wherein the base (1) is a hollow structure with one side open; A first screw (2), the first screw (2) being installed in the base (1); A movable arm (3), wherein the movable arm (3) has two members, one of the movable arms (3) being fixedly mounted in the base (1), one end of the first lead screw (2) being rotatably mounted on the movable arm (3); the other movable arm (3) being threadably connected to the first lead screw (2), and the first lead screw (2) being controlled to rotate so as to move the movable arm (3) threadably connected thereto; A slide bar (201), the slide bar (201) being installed in the base (1), and a moving arm (3) threadedly connected to the first lead screw (2) being slidably connected to the slide bar (201); Support arms (4), two of the support arms (4) are respectively mounted on the sides of the two movable arms (3) that are away from each other; A hollow sac (5), wherein the hollow sac (5) is mounted on a side of the support arm (4) away from the movable arm (3); A power mechanism (6), wherein the power mechanism (6) is installed on the base (1), the power mechanism (6) is connected to the hollow sac (5), and the power mechanism (6) is used to expand the hollow sac (5).

2. The thoracic support device for pig cardiovascular surgery according to claim 1, characterized in that: The power mechanism (6) comprises: An oil barrel (61), the oil barrel (61) being mounted on the base (1), the oil barrel (61) being a cylindrical hollow cavity; A first piston (62), wherein the first piston (62) is slidably mounted in the oil barrel (61), and the first piston (62) is in contact with the inner wall of the oil barrel (61); a second lead screw (63), one end of the second lead screw (63) being fixedly connected to the first piston (62), and the other end of the second lead screw (63) extending out of the outer wall of the oil barrel (61); A rotating seat (65) is rotatably mounted on the oil barrel (61), and the rotating seat (65) is threadedly connected to the second lead screw (63).

3. The thoracic support device for pig cardiovascular surgery according to claim 2, characterized in that: The power mechanism (6) further comprises: A slider (64), the slider (64) being mounted on one end of the second lead screw (63) extending out of the oil barrel (61); A slideway (66), wherein the slideway (66) is mounted on the base (1), and the slider (64) is slidably mounted in the slideway (66); An exhaust valve (67), wherein the exhaust valve (67) is installed on the oil barrel (61).

4. The thoracic support device for pig cardiovascular surgery according to claim 3, characterized in that: The movable arm (3) and the supporting arm (4) are connected via an adjustment mechanism (8), and the adjustment mechanism (8) comprises: A mounting plate (81), the mounting plate (81) being mounted on a side of the movable arm (3) opposite to the supporting arm (4); a third lead screw (82), the third lead screw (82) being rotatably mounted on a side of the support arm (4) opposite to the movable arm (3), and the mounting plate (81) being threadedly connected to the third lead screw (82); A guide rod (83) is installed on a side of the support arm (4) opposite to the movable arm (3), and the mounting plate (81) is slidably connected to the guide rod (83).

5. The thoracic support device for pig cardiovascular surgery according to claim 4, characterized in that: It also includes a driving mechanism (9), wherein the driving mechanism (9) is capable of rotating the first lead screw (2), and the driving mechanism (9) includes: A first bevel gear (91), the first bevel gear (91) being rotatably mounted in the base (1), and the first bevel gear (91) being connected to the other end of the first lead screw (2); A second bevel gear (92), the second bevel gear (92) being installed in the base (1) and meshingly connected with the first bevel gear (91); A rotating knob (93), wherein the rotating knob (93) is mounted on the base (1), and the rotating knob (93) is connected to the second bevel gear (92); A wrench (94), wherein the wrench (94) is mounted on the rotating knob (93); A socket (95) is provided on the wrench (94), and the rotary knob (93) is inserted into the socket (95).

6. The thoracic support device for pig cardiovascular surgery according to any one of claims 2 to 5, characterized in that: It also comprises a flow diversion mechanism (7), wherein the flow diversion mechanism (7) is mounted on the base (1), and the hollow capsule (5) is connected to the power mechanism (6) via the flow diversion mechanism (7).

7. The thoracic support device for pig cardiovascular surgery according to claim 6, characterized in that: The diversion mechanism (7) comprises: A protective shell (71), wherein the protective shell (71) is mounted on the base (1); A communication box (72), wherein the communication box (72) is mounted on the protective shell (71), and the oil barrel (61) is connected to the communication box (72) via a pipeline; Oil pipes (73), there are a plurality of oil pipes (73), which are equidistantly installed in the protective shell (71), and one end of the oil pipe (73) extends into the connecting box (72); Connectors (74), there are a plurality of connectors (74), which are respectively mounted on the protective shell (71), the plurality of connectors (74) are respectively connected to the other ends of the plurality of oil pipes (73), and the connectors (74) are connected to the hollow capsule (5) through a pipeline; A plug (75), the plug (75) being mounted on the connector (74); A top block (76), wherein there are a plurality of top blocks (76) installed in the protective shell (71), and the plurality of top blocks (76) respectively correspond to the positions of the plurality of oil pipes (73); a first spring (77), the first spring (77) being installed between the bottom end of the top block (76) and the protective shell (71); A cross bar (78), wherein the cross bar (78) is mounted on the top block (76); Through holes (7101), there are two through holes (7101), which are symmetrically arranged on the left and right sides of the protective shell (71); A driving rod (79), wherein the driving rod (79) passes through the protective shell (71) through two through holes (7101), and the driving rod (79) is in contact with the cross bar (78); A groove (710), wherein the groove (710) is formed on the driving rod (79); Lifting parts, there are three lifting parts, which are respectively installed in the protective shell (71); The lifting portion comprises: A fixing frame (711a), wherein the fixing frame (711a) is installed in the protective shell (71); A push-up block (711), wherein the push-up block (711) is rotatably mounted on the mounting frame (711a); A first stopper (712) and a second stopper (713), wherein the first stopper (712) and the second stopper (713) are installed in the protective shell (71), and the first stopper (712) and the second stopper (713) are respectively located on two sides of the fixing frame (711a); a second spring (714), the second spring (714) being installed between the push-up block (711) and the protective shell (71); A connecting rod (715), wherein the connecting rod (715) is rotatably connected to the push blocks (711) in the three lifting parts respectively; Blind grooves (716), there are three blind grooves (716), which are respectively opened on the lower surface of the driving rod (79); There are two shifting rods (717), which are respectively mounted on the driving rods (79).

8. The thoracic support device for pig cardiovascular surgery according to claim 7, characterized in that: The three lifting parts have different spacings; The interval between the three blind grooves (716) is the same as the interval between the three lifting portions.

9. The thoracic support device for pig cardiovascular surgery according to claim 8, characterized in that: A bracket (10) is installed on the lower surface of the base (1).

10. An artery clamping device for pig cardiovascular surgery, characterized in that: include: Housing (111); A hydraulic chamber (112), wherein the hydraulic chamber (112) is installed in the housing (111), and the hydraulic chamber (112) is connected to the connector (74) via a pipeline; A driving chamber (113), wherein the driving chamber (113) is installed in the housing (111); a second piston (114), the second piston (114) being slidably mounted in the hydraulic chamber (112); a connecting rod (115), one end of the connecting rod (115) being connected to the second piston (114), and the other end of the connecting rod (115) extending into the driving chamber (113); A push plate (116), the push plate (116) being mounted on one end of the connecting rod (115) extending into the driving chamber (113); A fixing rod (119), wherein the fixing rod (119) is installed in the driving cavity (113); A fixing clip (1110), wherein the number of the fixing clips (1110) is two and they are respectively symmetrically mounted on the fixing rod (119), and one end of the fixing clip (1110) away from the fixing rod (119) extends out of the outer wall of the housing (111); Pushing arms (117), two pushing arms (117) are symmetrically mounted on the pushing plate (116); Limiting grooves (118), wherein there are two limiting grooves (118), which are symmetrically installed in the driving cavity (113), and the two pushing arms (117) are slidably installed in the two limiting grooves (118) respectively; A leaf spring (1111), wherein the leaf spring (1111) is installed between the two fixing clamps (1110).

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